444166 has 8 divisors (see below), whose sum is σ = 669240. Its totient is φ = 221088.

The previous prime is 444151. The next prime is 444167. The reversal of 444166 is 661444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 444166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444167) by changing a digit.

444166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345 + ... + 1003.

It is an arithmetic number, because the mean of its divisors is an integer number (83655).

2⁴⁴⁴¹⁶⁶ is an apocalyptic number.

444166 is a deficient number, since it is larger than the sum of its proper divisors (225074).

444166 is a wasteful number, since it uses less digits than its factorization.

444166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its digits is 2304, while the sum is 25.

The square root of 444166 is about 666.4578006146. The cubic root of 444166 is about 76.2983425415.

The spelling of 444166 in words is "four hundred forty-four thousand, one hundred sixty-six".